I'm very new to brewing and also fermentation and I'm really confused when I start fermenting my ginger bug. I don't know when to screw my bottle tight and when to put a cheese cloth on top of the bottle and when to use airlock during the brewing process.
To put cheese cloth during first fermentation so I can capture more wild yeast into the bottle? But then if it start bubbling, the bubble will go away. Also it is suggested I shake the bottle every day, do I put the lid on, shake it and switch it back to cheese cloth?
To screw the bottle tight in 2nd fermentation is to keep the Co2 in the bottle to make the drink fizzy.
To use airlock is when you try to brew alcohol beverage and you will feed more sugar to the yeast and it will be a longer fermentation, using airlock will let Co2 escape the bottle safely.
So am I right?
But I see people using airlock during first fermentation and some people make fruit yeast water in a tightly screwed jar, so I got confused. I hope someone can help me to understand. Thank you very much.